I hope this is the right place for this one.  I'm getting ready to upgrade
from 1.3 to 1.3.1, but need to compile my own kernel (need a nonstandard
set of options).  Is there a simple command which takes the 
netbsd-1.3-1.3.1.diff.gz file and updates my /usr/src/sys/......
source tree from 1.3?  (then hopefully I can just use my old 1.3 config file
and do 
make depend
make

as I did last time)

I'm doing the build on a zip so space is somewhat limited.

Thanks,

Dan